. Hudson Grotto is a prehistoric limestone sink, most likely the oldest inland body of water in Pasco County. This unusual water feature is part fresh, part salt water and descends to depths over 100 feet.

What you’ll find here is very unique and different than other sites. Around the edges of Hudson Grotto you’ll explore limestone outcroppings with unusual fossils and solution tubes. In the shallows, you’ll find a variety of interesting fish and turtles. Large bass, catfish, bluegill and our very own koi will greet you as you enter.

If you see a little head poke above the surface”…don’t worry, it's just a local turtle checking out the divers as they enter the water. Around the water’s edge you have picnic tables and a shelter to keep you out of the sun while you put your gear together. Tanic "Ice Tea" colored water

​Hospital Hole is a submarine sink located in the Weeki Wachee River. The name comes from local legend where it is told that injured fish come to this site to be healed before returning to the sea. Access is restricted from land, but the site can be

easily accessed via boat or canoe from Roger’s Park.

The park collects a $2 fee (per vehicle) during daylight hours in the summer. The opening of the sink is about 30 ft across is easily seen through the river water. Visibility is usually excellent down to the hydrogen sulfide layer at about 70’. The maximum width of the sink is about 150 ft and maximum depth is around 140 feet. There is quite a bit of graffiti on the walls and makes for a laugh. The shape of the sink itself is like a small boot with no passage or major overhangs. The ceiling gently slopes upward towards the opening. Manatee can often be found playing in and around Hospital Hole which makes this site a ritch experience for divers or snorkelers alike.